Screw-on stopper for drinking-flasks.



No. 657,92l. Patented Sept. l8, I900. J. w, mxou. SCREW-0N STUPPEHFUBDRINKING FLASKS.

(Application filed Apr. 25, 1900.) N 0 M 0 d e l mmm wmm&

M 9 oum wow w 4 4 9 fimn k IZZLW$AR UNITED STATES PATENT OFFICE.

JAMES WILLIS DIXON, OF SHEFFIELD, ENGLAND.

SCREW-ON STOPPER FOR DRlNKlNG-FLASKS.

SPECIFICATION forming part of Letters Patent N 0. 657,921, datedSeptember 18, 19b0. Application filed April 25, 1900. Serial No. 14,314.(No model.)

To (all whom it ntcty concern: I

Be it known that 1, JAMES WILLIS DIXON, man ufacturer, a subject of theQueen of Great Britain, residing at Cornish Place, Sheffield, county ofYork, England, have invented a certain new and useful ImprovementConnected with Screw-On Stoppers of Drinking-Flasks, (for which I havemade an application for a patent in Great Britain, No. 3,484, bearingdate February 22, 1900,) of which the following is a specification.

The object of my invention is to attach the screw-on stopper to theflask by a hinge in such a manner that while allowing perfect freedom ofaction in screwing or unscrewing the stopper it prevents itsmisplacement and possible loss, a frequent result when loose orunattached stoppers are used.

I am aware that stoppers have been attached to flasks by a hinge andsecured by means of a bayonet-joint; but in actual use these are notsatisfactory. My arrangement permits of the stopper taking up the slackcaused by repeated applications of pressure upon the cork or othersubstance which presses upon the mouth of the flask, and is thereforemore reliable.

Referring to the drawings which form a part of this specification,Figure 1 represents a complete flask made after my invention with thestopper closed; Fig. 2, the same with the stopper opened; Fig. 3, thestopper closed,

shown in section; Fig. 4, the stopper unscrewed, shown in section.

Upon the neck-collar O of the flask F is a projecting half-hinge II andan externallyscrew-threaded mouthpiece M, terminating in an annular lipL, which forms the entrance to the interior of the flask and againstwhich the disk D, of cork or other suitable substance, is pressed whenthe stopper is screwed down. To the hinge part H, I pin-joint a collar 0having an inside flange 0 through which I pass the neck N of the stopperS, which is also provided with a retaining flange or collar N to preventthe detachment of the stopper while permitting its rotation and atraversing movement while being screwed upon the mouthpiece M, for whichpurpose it is screwthreaded internally.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The combination with a bottle having a threaded neck and a ring securedthereto, of a second ring hinged to the first, said second ring havingits upper edge turned in to form an annular flange and a stopper havinga stem threaded to fit said neck, the said stem being slidablevertically in the second ring,the lower edge of said stem having anoutwardly-projecting annular flange adapted to project beneath theflange on the ring, substantially as described.

In witness whereof I have hereunto set my hand in presence of twoWitnesses.

JAMES WILLIS DIXON.

Witnesses:

T. H. GREEN, H. BERRYMAN.

